A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6110-00-955-0900
NSN 5999-01-049-2732
NSN 6685-01-188-7379
NSN 6320-00-082-5868
NSN 5990-01-521-7890
NSN 5990-01-171-3547
NSN 6620-00-100-4517
NSN 6110-00-455-7639
NSN 5950-00-902-7738
NSN 5975-01-609-2539
NSN 6130-01-660-5299
NSN 5905-01-517-7416